MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'possessive nouns worksheets for kindergarten'. The presence of a link farm and the ML classifier's high confidence further support malicious intent. The primary attack pattern involves redirecting the user to malicious content via the ttraff.ru URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
-
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
-
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
-
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
-
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
-
Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/wb?keyword=possessive%20nouns%20worksheets%20for%20kindergarten In PDF document text
- http://files.professionalcapitalpartners.com/uploads/1/3/1/4/131438766/4121815.pdfIn PDF document text
- http://files.vbgprofessionals.com/uploads/1/3/1/3/131382092/tepaxinogufu-tevirudutojegin-sagiz-natisasupata.pdfIn PDF document text
- http://files.getitwright.com/uploads/1/3/0/7/130776788/pufim-fafopunatobi.pdfIn PDF document text
- http://files.summerconferenceportland.org/uploads/1/3/1/4/131406811/884349.pdfIn PDF document text
- http://files.resourceology360.com/uploads/1/3/0/9/130968994/bamatakaladod.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8868/2915/files/vufizikemuge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6045/2760/files/joxukotapamaxokupisamowa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5003/2549/files/tawutegimuselopetipa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0416/6297/files/58523076998.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3342/0195/files/gekaduruvinunivuxavid.pdfIn PDF document text
- https://kipexot.files.wordpress.com/2020/07/38136356171.pdfIn PDF document text
- https://vonulomud.files.wordpress.com/2020/07/nubegusawapulivemezi.pdfIn PDF document text
- https://ruzufugaf.files.wordpress.com/2020/06/luvepoguzaneta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17232613021.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4841/8971/files/63922055356.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9658/1020/files/77008720422.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7573/1607/files/75132711203.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0972/6888/files/70818424248.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0364/0984/files/86722478950.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6451/7023/files/92793097407.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006666.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6666 | 5236 bytes |
SHA-256: a6c658a5db9b4beeab770359a2de08e1197910fc1dfef84c0b9dd203c98b2c0f |
|||
font_01_sfnt_off00007843.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7843 | 10088 bytes |
SHA-256: 3a287bc5f9c179843fa652ce0042287997e6e82b6575a26e2a8b93fa1dea1899 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.